The exact answer is 123.592105263
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let's recall the vertical line test, it's a function if when dropping a vertical line on the graph, it only touches it once on the way down.
Check the picture below.
Answer:
x² + 8x + 7
General Formulas and Concepts:
<u>Algebra I</u>
- Terms/Coefficients/Degrees
- Expand by FOIL (First Outside Inside Last)
Step-by-step explanation:
<u>Step 1: Define</u>
(x + 7)(x + 1)
<u>Step 2: Expand</u>
- Expand [FOIL]: x² + x + 7x + 7
- Combine like terms: x² + 8x + 7
Answer: j+47=55
Subtract 47 from both sides.
j= 8
Step-by-step explanation: